@charset "utf-8";
/* CSS Document */
body {
  margin: 0 auto;
  padding: 0;
  text-align: center;
}
img {
  display: block;
  width: 100%;
  height: auto;
}
header {
  margin-bottom: 100px;
}
.img-box img {
  display: block;
  width: 100%;
  height: auto;
  text-align: center;
  margin-bottom: 100px;
}
/* モーダル用CSS */
.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  justify-content: center;
  align-items: center;
}
.modal img {
  max-width: 90%;
  max-height: 90%;
}
.modal.active {
  display: flex;
}
.modal-close {
  position: absolute;
  top: 50px;
  right: 50px;
  color: #fff;
  font-size: 30px;
  cursor: pointer;
}